%% dx = (0.125,0.125)
solution = [
-0.331279 -0.146413 0.181674 0.254766 -2.50125e-16 -0.254766 -0.181674 0.146413 0.331279 
1.05465 0.383095 -0.801549 -1.03253 -4.93082e-16 1.03253 0.801549 -0.383095 -1.05465 
-0.071621 -0.0496746 -0.0123153 0 0 0 0.0123153 0.0496746 0.071621 
-1.24179 -0.497857 0.823462 0 0 0 -0.823462 0.497857 1.24179 
-0.0444946 -0.048064 -0.065665 0 0 0 0.065665 0.048064 0.0444946 
1.15994 0.41576 -0.90023 -1.16473 -4.96691e-16 1.16473 0.90023 -0.41576 -1.15994 
-0.0025971 -0.0239658 -0.0601653 -0.0590208 -3.44315e-16 0.0590208 0.0601653 0.0239658 0.0025971 
-1.12239 -0.448861 0.742555 0.988813 -2.13904e-16 -0.988813 -0.742555 0.448861 1.12239 
0.266064 0.0837233 -0.235684 -0.290128 -5.30159e-16 0.290128 0.235684 -0.0837233 -0.266064 
];
exact = [
0 0 -0 -0 -0 0 0 -0 -0 
1 0.382683 -0.707107 -0.92388 -1.83697e-16 0.92388 0.707107 -0.382683 -1 
1.22465e-16 4.68652e-17 -8.65956e-17 0 0 0 8.65956e-17 -4.68652e-17 -1.22465e-16 
-1 -0.382683 0.707107 0 0 0 -0.707107 0.382683 1 
-2.44929e-16 -9.37304e-17 1.73191e-16 0 0 0 -1.73191e-16 9.37304e-17 2.44929e-16 
1 0.382683 -0.707107 -0.92388 -1.83697e-16 0.92388 0.707107 -0.382683 -1 
3.67394e-16 1.40596e-16 -2.59787e-16 -3.39428e-16 -6.74892e-32 3.39428e-16 2.59787e-16 -1.40596e-16 -3.67394e-16 
-1 -0.382683 0.707107 0.92388 1.83697e-16 -0.92388 -0.707107 0.382683 1 
-4.89859e-16 -1.87461e-16 3.46382e-16 4.5257e-16 8.99856e-32 -4.5257e-16 -3.46382e-16 1.87461e-16 4.89859e-16 
];
err = [
-0.331279 -0.146413 0.181674 0.254766 -2.50125e-16 -0.254766 -0.181674 0.146413 0.331279 
0.0546509 0.000411297 -0.0944426 -0.108653 -3.09385e-16 0.108653 0.0944426 -0.000411297 -0.0546509 
-0.071621 -0.0496746 -0.0123153 0 0 0 0.0123153 0.0496746 0.071621 
-0.241786 -0.115173 0.116355 0 0 0 -0.116355 0.115173 0.241786 
-0.0444946 -0.048064 -0.065665 0 0 0 0.065665 0.048064 0.0444946 
0.159936 0.0330768 -0.193123 -0.240852 -3.12994e-16 0.240852 0.193123 -0.0330768 -0.159936 
-0.0025971 -0.0239658 -0.0601653 -0.0590208 -3.44315e-16 0.0590208 0.0601653 0.0239658 0.0025971 
-0.122392 -0.0661777 0.0354487 0.0649337 -3.97601e-16 -0.0649337 -0.0354487 0.0661777 0.122392 
0.266064 0.0837233 -0.235684 -0.290128 -5.30159e-16 0.290128 0.235684 -0.0837233 -0.266064 
];
